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Harald SackIn our last <a href="https://sigmoid.social/tags/ISE2025" class="mention hashtag" rel="nofollow noopener" target="_blank">#ISE2025</a> lecture last week, we were discussing what makes a node "important" in a knowledge graph. A simple heuristics can be borrowed from graph theory or communication theory: Degree CentralityInterestingly, in Wikidata In-degree centrality states Jane Austen to be to most "important" female author, while Out-degree centrality claims J.K. Rowling as being more "important" ;-) <a href="https://sigmoid.social/tags/knowledgegraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#knowledgegraphs</a> <a href="https://sigmoid.social/tags/semanticweb" class="mention hashtag" rel="nofollow noopener" target="_blank">#semanticweb</a> <a href="https://sigmoid.social/tags/graphtheory" class="mention hashtag" rel="nofollow noopener" target="_blank">#graphtheory</a> <a href="https://sigmoid.social/tags/feminism" class="mention hashtag" rel="nofollow noopener" target="_blank">#feminism</a> <a href="https://sigmoid.social/tags/eyeofthebeholder" class="mention hashtag" rel="nofollow noopener" target="_blank">#eyeofthebeholder</a> <a href="https://fedihum.org/@sourisnumerique" class="u-url mention" rel="nofollow noopener" target="_blank">@sourisnumerique</a> <a href="https://sigmoid.social/@enorouzi" class="u-url mention" rel="nofollow noopener" target="_blank">@enorouzi</a>

Daniel HernándezYuqicheng Zhu (<a href="https://bsky.brid.gy/r/https://bsky.app/profile/yuqichengzhu.bsky.social" class="u-url mention" rel="nofollow noopener" target="_blank">@yuqichengzhu.bsky.social</a>) presented our paper, Predicate-Conditional Conformalized Answer Sets for Knowledge Graph Embeddings, at <a href="https://mstdn.degu.cl/tags/ACL2025" class="mention hashtag" rel="nofollow noopener" target="_blank">#ACL2025</a>. This paper studies a key question for the reliability of applications using knowledge graph embeddings: How to quantify the uncertainty? We show that not all data have the same uncertainty and propose a method to have stronger guarantees by grouping similar data.<a href="https://arxiv.org/abs/2505.16877" rel="nofollow noopener" translate="no" target="_blank">https://arxiv.org/abs/2505.16877</a><a href="https://mstdn.degu.cl/tags/KnowledgeGraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#KnowledgeGraphs</a> <a href="https://mstdn.degu.cl/tags/MachineLearning" class="mention hashtag" rel="nofollow noopener" target="_blank">#MachineLearning</a>

ISWC 2025📢 ISWC 2025 Industry Track notifications are out! 🎉 Congrats to all accepted authors! 🔗 <a href="https://iswc2025.semanticweb.org/#/program/acceptedpapers" rel="nofollow noopener" translate="no" target="_blank">https://iswc2025.semanticweb.org/#/program/acceptedpapers</a>🕒 Poster & Demo deadline is TOMORROW (July 31)! CfP: 🔗 iswc2025.semanticweb.org#/calls/posters<a href="https://mastodon.social/tags/ISWC2025" class="mention hashtag" rel="nofollow noopener" target="_blank">#ISWC2025</a> <a href="https://mastodon.social/tags/IndustryTrack" class="mention hashtag" rel="nofollow noopener" target="_blank">#IndustryTrack</a> <a href="https://mastodon.social/tags/Posters" class="mention hashtag" rel="nofollow noopener" target="_blank">#Posters</a> <a href="https://mastodon.social/tags/Demos" class="mention hashtag" rel="nofollow noopener" target="_blank">#Demos</a> <a href="https://mastodon.social/tags/SemanticWeb" class="mention hashtag" rel="nofollow noopener" target="_blank">#SemanticWeb</a> <a href="https://mastodon.social/tags/KnowledgeGraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#KnowledgeGraphs</a> <a href="https://mastodon.social/tags/AI" class="mention hashtag" rel="nofollow noopener" target="_blank">#AI</a> <a href="https://mastodon.social/tags/LLM" class="mention hashtag" rel="nofollow noopener" target="_blank">#LLM</a> <a href="https://mastodon.social/@anligentile" class="u-url mention" rel="nofollow noopener" target="_blank">@anligentile</a> <a href="https://mastodon.social/@maribelacosta" class="u-url mention" rel="nofollow noopener" target="_blank">@maribelacosta</a> @GenAsefa

Harald SackOne of our final topics in the <a href="https://sigmoid.social/tags/ISE2025" class="mention hashtag" rel="nofollow noopener" target="_blank">#ISE2025</a> lecture were Knowledge Graph Embeddings. How to vectorise KG structures while preserving their inherent semantics? <a href="https://sigmoid.social/tags/AI" class="mention hashtag" rel="nofollow noopener" target="_blank">#AI</a> <a href="https://sigmoid.social/tags/KGE" class="mention hashtag" rel="nofollow noopener" target="_blank">#KGE</a> <a href="https://sigmoid.social/tags/knowledgegraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#knowledgegraphs</a> <a href="https://sigmoid.social/tags/embeddings" class="mention hashtag" rel="nofollow noopener" target="_blank">#embeddings</a> <a href="https://sigmoid.social/tags/semanticweb" class="mention hashtag" rel="nofollow noopener" target="_blank">#semanticweb</a> <a href="https://sigmoid.social/tags/lecture" class="mention hashtag" rel="nofollow noopener" target="_blank">#lecture</a> <a href="https://sigmoid.social/@fizise" class="u-url mention" rel="nofollow noopener" target="_blank">@fizise</a> <a href="https://fedihum.org/@tabea" class="u-url mention" rel="nofollow noopener" target="_blank">@tabea</a> <a href="https://fedihum.org/@sourisnumerique" class="u-url mention" rel="nofollow noopener" target="_blank">@sourisnumerique</a> <a href="https://sigmoid.social/@enorouzi" class="u-url mention" rel="nofollow noopener" target="_blank">@enorouzi</a> <a href="https://wisskomm.social/@fiz_karlsruhe" class="u-url mention" rel="nofollow noopener" target="_blank">@fiz_karlsruhe</a>

ISWC 2025🕒 Time's ticking! ISWC 2025 Poster & Demo deadline is almost here — July 31!CfP: <a href="https://iswc2025.semanticweb.org/#/calls/posters" rel="nofollow noopener" translate="no" target="_blank">https://iswc2025.semanticweb.org/#/calls/posters</a><a href="https://mastodon.social/tags/ISWC2025" class="mention hashtag" rel="nofollow noopener" target="_blank">#ISWC2025</a> <a href="https://mastodon.social/tags/Posters" class="mention hashtag" rel="nofollow noopener" target="_blank">#Posters</a> <a href="https://mastodon.social/tags/Demos" class="mention hashtag" rel="nofollow noopener" target="_blank">#Demos</a> <a href="https://mastodon.social/tags/SemanticWeb" class="mention hashtag" rel="nofollow noopener" target="_blank">#SemanticWeb</a> <a href="https://mastodon.social/tags/KnowledgeGraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#KnowledgeGraphs</a> <a href="https://mastodon.social/tags/LLM" class="mention hashtag" rel="nofollow noopener" target="_blank">#LLM</a> <a href="https://mastodon.social/tags/AI" class="mention hashtag" rel="nofollow noopener" target="_blank">#AI</a> <a href="https://mastodon.social/@anligentile" class="u-url mention" rel="nofollow noopener" target="_blank">@anligentile</a> <a href="https://mastodon.social/@maribelacosta" class="u-url mention" rel="nofollow noopener" target="_blank">@maribelacosta</a> <a href="https://sigmoid.social/@GenAsefa" class="u-url mention" rel="nofollow noopener" target="_blank">@GenAsefa</a>

InfoQDiscover how integrating <a href="https://techhub.social/tags/KnowledgeGraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#KnowledgeGraphs</a> with <a href="https://techhub.social/tags/LLM" class="mention hashtag" rel="nofollow noopener" target="_blank">#LLM</a>-based systems delivers structured data as a ground truth - enhancing accuracy & reliability.This approach tackles key challenges like: ✅ Hallucinations ✅ The “lost-in-the-middle” issue …especially in <a href="https://techhub.social/tags/RetrievalAugmentedGeneration" class="mention hashtag" rel="nofollow noopener" target="_blank">#RetrievalAugmentedGeneration</a> (<a href="https://techhub.social/tags/RAG" class="mention hashtag" rel="nofollow noopener" target="_blank">#RAG</a>) applications.🎬 Watch the <a href="https://techhub.social/tags/InfoQ" class="mention hashtag" rel="nofollow noopener" target="_blank">#InfoQ</a> video to dive deeper - <a href="https://techhub.social/tags/transcript" class="mention hashtag" rel="nofollow noopener" target="_blank">#transcript</a> included: <a href="https://bit.ly/3U0R7HY" rel="nofollow noopener" translate="no" target="_blank">https://bit.ly/3U0R7HY</a> <a href="https://techhub.social/tags/AI" class="mention hashtag" rel="nofollow noopener" target="_blank">#AI</a>

DiTraReLearn more about one of our Use Case Partners, the Research Data Center Motor Performance at the Institute of Sports & Sports Science at KIT Karlsruhe with our esteemed colleagues Claudia Niessner and Katja Keller<a href="https://zenodo.org/records/15774893" rel="nofollow noopener" translate="no" target="_blank">https://zenodo.org/records/15774893</a><a href="https://social.kit.edu/tags/ditrare" class="mention hashtag" rel="nofollow noopener" target="_blank">#ditrare</a> <a href="https://social.kit.edu/@KIT_Karlsruhe" class="u-url mention" rel="nofollow noopener" target="_blank">@KIT_Karlsruhe</a> <a href="https://wisskomm.social/@fiz_karlsruhe" class="u-url mention" rel="nofollow noopener" target="_blank">@fiz_karlsruhe</a> <a href="https://social.kit.edu/@ITAS" class="u-url mention" rel="nofollow noopener" target="_blank">@ITAS</a> <a href="https://sigmoid.social/@AnnaJacyszyn" class="u-url mention" rel="nofollow noopener" target="_blank">@AnnaJacyszyn</a> <a href="https://chaos.social/@Feelix" class="u-url mention" rel="nofollow noopener" target="_blank">@Feelix</a> <a href="https://fedihum.org/@sourisnumerique" class="u-url mention" rel="nofollow noopener" target="_blank">@sourisnumerique</a> <a href="https://sigmoid.social/@joerg" class="u-url mention" rel="nofollow noopener" target="_blank">@joerg</a> <a href="https://social.kit.edu/tags/knowledgegraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#knowledgegraphs</a> <a href="https://social.kit.edu/tags/sportsscience" class="mention hashtag" rel="nofollow noopener" target="_blank">#sportsscience</a> <a href="https://social.kit.edu/tags/sports" class="mention hashtag" rel="nofollow noopener" target="_blank">#sports</a> <a href="https://social.kit.edu/tags/AI" class="mention hashtag" rel="nofollow noopener" target="_blank">#AI</a> <a href="https://social.kit.edu/tags/dataprivacy" class="mention hashtag" rel="nofollow noopener" target="_blank">#dataprivacy</a>

Harald Sack<a href="https://mastodon.social/@naturzukunft" class="u-url mention" rel="nofollow noopener" target="_blank">@naturzukunft</a> Actually, this is WIkipedia and only structured data, i.e. no RDF. However, use this SPARQL query on DBpedia to get vitamins and minerals of a cucumber ;-) <a href="https://dbpedia.org/sparql?default-graph-uri=http%3A%2F%2Fdbpedia.org&qtxt=SELECT%20*%20WHERE%20%7B%0A%20dbr%3ACucumber%20%3Fp%20%3Fo%20.%20FILTER%20regex%20(%3Fp%2C%20%22%5BMU%5Dg%22).%0A%7D%0A%0A%0A&format=text%2Fhtml&timeout=30000&signal_void=on&signal_unconnected=on" rel="nofollow noopener" translate="no" target="_blank">https://dbpedia.org/sparql?default-graph-uri=http%3A%2F%2Fdbpedia.org&qtxt=SELECT%20*%20WHERE%20%7B%0A%20dbr%3ACucumber%20%3Fp%20%3Fo%20.%20FILTER%20regex%20(%3Fp%2C%20%22%5BMU%5Dg%22).%0A%7D%0A%0A%0A&format=text%2Fhtml&timeout=30000&signal_void=on&signal_unconnected=on</a><a href="https://sigmoid.social/tags/sparql" class="mention hashtag" rel="nofollow noopener" target="_blank">#sparql</a> <a href="https://sigmoid.social/tags/rdf" class="mention hashtag" rel="nofollow noopener" target="_blank">#rdf</a> <a href="https://sigmoid.social/tags/dbpedia" class="mention hashtag" rel="nofollow noopener" target="_blank">#dbpedia</a> <a href="https://sigmoid.social/tags/wikidata" class="mention hashtag" rel="nofollow noopener" target="_blank">#wikidata</a> <a href="https://sigmoid.social/tags/cucumber" class="mention hashtag" rel="nofollow noopener" target="_blank">#cucumber</a> <a href="https://sigmoid.social/tags/dbpedia" class="mention hashtag" rel="nofollow noopener" target="_blank">#dbpedia</a> <a href="https://mstdn.social/@dbpedia" class="u-url mention" rel="nofollow noopener" target="_blank">@dbpedia</a> <a href="https://sigmoid.social/tags/semanticweb" class="mention hashtag" rel="nofollow noopener" target="_blank">#semanticweb</a> <a href="https://sigmoid.social/tags/knowledgegraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#knowledgegraphs</a>

ISWC 2025📌 Reminder: ISWC 2025 Posters & Demos Deadline – July 31! Got a tool, prototype, or early-stage idea? Share it with the community at ISWC 2025!🗓️ Deadline: July 31, 2025 🔗<a href="https://iswc2025.semanticweb.org/#/calls/posters" rel="nofollow noopener" translate="no" target="_blank">https://iswc2025.semanticweb.org/#/calls/posters</a><a href="https://mastodon.social/tags/ISWC2025" class="mention hashtag" rel="nofollow noopener" target="_blank">#ISWC2025</a> <a href="https://mastodon.social/tags/Posters" class="mention hashtag" rel="nofollow noopener" target="_blank">#Posters</a> <a href="https://mastodon.social/tags/Demos" class="mention hashtag" rel="nofollow noopener" target="_blank">#Demos</a> <a href="https://mastodon.social/tags/SemanticWeb" class="mention hashtag" rel="nofollow noopener" target="_blank">#SemanticWeb</a> <a href="https://mastodon.social/tags/KnowledgeGraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#KnowledgeGraphs</a> <a href="https://mastodon.social/tags/LLM" class="mention hashtag" rel="nofollow noopener" target="_blank">#LLM</a> <a href="https://mastodon.social/tags/AI" class="mention hashtag" rel="nofollow noopener" target="_blank">#AI</a> <a href="https://mastodon.social/@anligentile" class="u-url mention" rel="nofollow noopener" target="_blank">@anligentile</a> <a href="https://mstdn.jp/@K_e_n_F" class="u-url mention" rel="nofollow noopener" target="_blank">@K_e_n_F</a> <a href="https://mastodon.social/@maribelacosta" class="u-url mention" rel="nofollow noopener" target="_blank">@maribelacosta</a> <a href="https://sigmoid.social/@GenAsefa" class="u-url mention" rel="nofollow noopener" target="_blank">@GenAsefa</a>

Harald SackYou are an expert in ontologies and knowledge graphs? You have an interest (or even better expertise) in materials science engineering? Then you should apply! Open PostDoc/Senior Researcher position at FIZ Karlsruhe ISE Research Team in the Knowledge Graph department. More info at <a href="https://www.fiz-karlsruhe.de/en/stellenanzeigen/postdocsenior-researcher-wmx" rel="nofollow noopener" translate="no" target="_blank">https://www.fiz-karlsruhe.de/en/stellenanzeigen/postdocsenior-researcher-wmx</a><a href="https://sigmoid.social/tags/joboffer" class="mention hashtag" rel="nofollow noopener" target="_blank">#joboffer</a> <a href="https://sigmoid.social/tags/ontologies" class="mention hashtag" rel="nofollow noopener" target="_blank">#ontologies</a> <a href="https://sigmoid.social/tags/bfo" class="mention hashtag" rel="nofollow noopener" target="_blank">#bfo</a> <a href="https://sigmoid.social/tags/bfo2020" class="mention hashtag" rel="nofollow noopener" target="_blank">#bfo2020</a> <a href="https://sigmoid.social/tags/pmd" class="mention hashtag" rel="nofollow noopener" target="_blank">#pmd</a> <a href="https://sigmoid.social/tags/materialsscience" class="mention hashtag" rel="nofollow noopener" target="_blank">#materialsscience</a> <a href="https://sigmoid.social/tags/knowledgegraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#knowledgegraphs</a> <a href="https://sigmoid.social/tags/jobad" class="mention hashtag" rel="nofollow noopener" target="_blank">#jobad</a> <a href="https://sigmoid.social/tags/ontologyengineering" class="mention hashtag" rel="nofollow noopener" target="_blank">#ontologyengineering</a> <a href="https://sigmoid.social/tags/semanticweb" class="mention hashtag" rel="nofollow noopener" target="_blank">#semanticweb</a> <a href="https://sigmoid.social/tags/modeling" class="mention hashtag" rel="nofollow noopener" target="_blank">#modeling</a> <a href="https://sigmoid.social/@fizise" class="u-url mention" rel="nofollow noopener" target="_blank">@fizise</a> <a href="https://sigmoid.social/tags/materialdigital" class="mention hashtag" rel="nofollow noopener" target="_blank">#materialdigital</a> <a href="https://sigmoid.social/tags/nfdimatwerk" class="mention hashtag" rel="nofollow noopener" target="_blank">#nfdimatwerk</a> <a href="https://wisskomm.social/@fiz_karlsruhe" class="u-url mention" rel="nofollow noopener" target="_blank">@fiz_karlsruhe</a>

Institute for AIIs complex query answering really complex? A paper at the International Conference on Machine Learning (<a href="https://xn--baw-joa.social/tags/ICML2025" class="mention hashtag" rel="nofollow noopener" target="_blank">#ICML2025</a>) presented by Cosimo Gregucci, PhD student at <a href="https://xn--baw-joa.social/@UniStuttgartAI" class="u-url mention" rel="nofollow noopener" target="_blank">@UniStuttgartAI</a> <a href="https://xn--baw-joa.social/@Uni_Stuttgart" class="u-url mention" rel="nofollow noopener" target="_blank">@Uni_Stuttgart</a>, discussed this question.In this paper, Cosimo Gregucci, Bo Xiong, Daniel Hernández (<a href="https://mstdn.degu.cl/@daniel" class="u-url mention" rel="nofollow noopener" target="_blank">@daniel</a>), Lorenzo Loconte, Pasquale Minervini (<a href="https://sigmoid.social/@pminervini" class="u-url mention" rel="nofollow noopener" target="_blank">@pminervini</a>), Steffen Staab, and Antonio Vergari (<a href="https://ellis.social/@nolovedeeplearning" class="u-url mention" rel="nofollow noopener" target="_blank">@nolovedeeplearning</a>) reveal that the “good” performance of SoTA approaches predominantly comes from answers that can be boiled down to single link prediction. Current neural and hybrid solvers can exploit (different) forms of triple memorization to make complex queries much easier. The authors confirm this by reporting the performance of these methods in a stratified analysis and by proposing a hybrid solver, CQD-Hybrid, which, while being a simple extension of an old method like CQD, can be very competitive against other SoTA models.The paper proposed a way to make query answering benchmarks more challenging in order to advance science.<a href="https://arxiv.org/abs/2410.12537" rel="nofollow noopener" translate="no" target="_blank">https://arxiv.org/abs/2410.12537</a><a href="https://xn--baw-joa.social/tags/KnowledgeGraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#KnowledgeGraphs</a> <a href="https://xn--baw-joa.social/tags/QueryAnswering" class="mention hashtag" rel="nofollow noopener" target="_blank">#QueryAnswering</a> <a href="https://xn--baw-joa.social/tags/ArtificialIntelligence" class="mention hashtag" rel="nofollow noopener" target="_blank">#ArtificialIntelligence</a> <a href="https://xn--baw-joa.social/tags/MachineLearning" class="mention hashtag" rel="nofollow noopener" target="_blank">#MachineLearning</a> <a href="https://xn--baw-joa.social/tags/Benchmarking" class="mention hashtag" rel="nofollow noopener" target="_blank">#Benchmarking</a> <a href="https://xn--baw-joa.social/tags/CQA" class="mention hashtag" rel="nofollow noopener" target="_blank">#CQA</a>

FIZ ISE Research GroupLast week at the MSE Research Data Forum 2025 in Siegburg with our colleagues <a href="https://sigmoid.social/@lysander07" class="u-url mention" rel="nofollow noopener" target="_blank">@lysander07</a> <a href="https://sigmoid.social/@joerg" class="u-url mention" rel="nofollow noopener" target="_blank">@joerg</a> <a href="https://fosstodon.org/@heikef" class="u-url mention" rel="nofollow noopener" target="_blank">@heikef</a> and Hossein Nasrabadi, discussing NFDIcore ontology, MatWerk Ontology, Matwerk Knowledge Graph and PMDcore ontology.<a href="https://sigmoid.social/tags/materialsscience" class="mention hashtag" rel="nofollow noopener" target="_blank">#materialsscience</a> <a href="https://sigmoid.social/tags/mse" class="mention hashtag" rel="nofollow noopener" target="_blank">#mse</a> <a href="https://sigmoid.social/tags/nfdimatwerk" class="mention hashtag" rel="nofollow noopener" target="_blank">#nfdimatwerk</a> <a href="https://sigmoid.social/tags/nfdirocks" class="mention hashtag" rel="nofollow noopener" target="_blank">#nfdirocks</a> <a href="https://sigmoid.social/tags/knowledgegraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#knowledgegraphs</a> <a href="https://sigmoid.social/tags/ontologies" class="mention hashtag" rel="nofollow noopener" target="_blank">#ontologies</a> <a href="https://sigmoid.social/tags/bfo" class="mention hashtag" rel="nofollow noopener" target="_blank">#bfo</a> <a href="https://sigmoid.social/@enorouzi" class="u-url mention" rel="nofollow noopener" target="_blank">@enorouzi</a> <a href="https://wisskomm.social/@fiz_karlsruhe" class="u-url mention" rel="nofollow noopener" target="_blank">@fiz_karlsruhe</a>

WikidataWhat does it take to maintain one of the world's largest repositories of free, structured knowledge? Read this interview about the challenges Wikidata faces and how the team handles massive scale and constant updates, all while remaining open source: <a href="https://www.bigdatawire.com/2025/07/10/scaling-the-knowledge-graph-behind-wikipedia/" rel="nofollow noopener" translate="no" target="_blank">https://www.bigdatawire.com/2025/07/10/scaling-the-knowledge-graph-behind-wikipedia/</a> <a href="https://wikis.world/tags/OpenData" class="mention hashtag" rel="nofollow noopener" target="_blank">#OpenData</a> <a href="https://wikis.world/tags/KnowledgeGraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#KnowledgeGraphs</a> <a href="https://wikis.world/tags/BigData" class="mention hashtag" rel="nofollow noopener" target="_blank">#BigData</a> <a href="https://wikis.world/tags/SemanticWeb" class="mention hashtag" rel="nofollow noopener" target="_blank">#SemanticWeb</a>

Harald SackCongratulations to Akhil Thomas for his succesful PhD defense today in Freiburg with a thesis on Data-driven analysis of microstructure-sensitive fatigue damage initiation! 🎉🥂🙌<a href="https://sigmoid.social/tags/pmd" class="mention hashtag" rel="nofollow noopener" target="_blank">#pmd</a> <a href="https://sigmoid.social/tags/materialsscience" class="mention hashtag" rel="nofollow noopener" target="_blank">#materialsscience</a> <a href="https://sigmoid.social/tags/ai" class="mention hashtag" rel="nofollow noopener" target="_blank">#ai</a> <a href="https://sigmoid.social/tags/KnowledgeGraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#KnowledgeGraphs</a> <a href="https://sigmoid.social/tags/freiburg" class="mention hashtag" rel="nofollow noopener" target="_blank">#freiburg</a> <a href="https://sigmoid.social/tags/phd" class="mention hashtag" rel="nofollow noopener" target="_blank">#phd</a> <a href="https://sigmoid.social/tags/academiclife" class="mention hashtag" rel="nofollow noopener" target="_blank">#academiclife</a>

Harald SackThis week our colleagues <a href="https://fedihum.org/@tabea" class="u-url mention" rel="nofollow noopener" target="_blank">@tabea</a> and Linnea Söhn presented our joint work at the <a href="https://sigmoid.social/tags/DH2025" class="mention hashtag" rel="nofollow noopener" target="_blank">#DH2025</a> poster presentation at 30+°C outside in Lisbon, Portugal :) poster at zenodo: <a href="https://zenodo.org/records/15878213" rel="nofollow noopener" translate="no" target="_blank">https://zenodo.org/records/15878213</a><a href="https://sigmoid.social/tags/dh" class="mention hashtag" rel="nofollow noopener" target="_blank">#dh</a> <a href="https://sigmoid.social/tags/nfdirocks" class="mention hashtag" rel="nofollow noopener" target="_blank">#nfdirocks</a> <a href="https://nfdi.social/@nfdi4culture" class="u-url mention" rel="nofollow noopener" target="_blank">@nfdi4culture</a> <a href="https://nfdi.social/@NFDI4Memory" class="u-url mention" rel="nofollow noopener" target="_blank">@NFDI4Memory</a> <a href="https://nfdi.social/@NFDI4DS" class="u-url mention" rel="nofollow noopener" target="_blank">@NFDI4DS</a> <a href="https://sigmoid.social/tags/NFDIMatWerk" class="mention hashtag" rel="nofollow noopener" target="_blank">#NFDIMatWerk</a> <a href="https://sigmoid.social/tags/researchdatamanagement" class="mention hashtag" rel="nofollow noopener" target="_blank">#researchdatamanagement</a> <a href="https://sigmoid.social/@fizise" class="u-url mention" rel="nofollow noopener" target="_blank">@fizise</a> <a href="https://wisskomm.social/@fiz_karlsruhe" class="u-url mention" rel="nofollow noopener" target="_blank">@fiz_karlsruhe</a> <a href="https://mastodon.social/@jonatan" class="u-url mention" rel="nofollow noopener" target="_blank">@jonatan</a> <a href="https://fosstodon.org/@heikef" class="u-url mention" rel="nofollow noopener" target="_blank">@heikef</a> <a href="https://fedihum.org/@sourisnumerique" class="u-url mention" rel="nofollow noopener" target="_blank">@sourisnumerique</a> <a href="https://fedihum.org/@linnaea" class="u-url mention" rel="nofollow noopener" target="_blank">@linnaea</a> <a href="https://fedihum.org/@sashabruns" class="u-url mention" rel="nofollow noopener" target="_blank">@sashabruns</a> <a href="https://blog.epoz.org/" class="u-url mention" rel="nofollow noopener" target="_blank">@epoz</a> <a href="https://sigmoid.social/tags/ontologies" class="mention hashtag" rel="nofollow noopener" target="_blank">#ontologies</a> <a href="https://sigmoid.social/tags/knowledgegraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#knowledgegraphs</a> <a href="https://sigmoid.social/tags/semanticweb" class="mention hashtag" rel="nofollow noopener" target="_blank">#semanticweb</a> <a href="https://sigmoid.social/tags/ai" class="mention hashtag" rel="nofollow noopener" target="_blank">#ai</a>

FIZ ISE Research GroupOur colleague <a href="https://fedihum.org/@tabea" class="u-url mention" rel="nofollow noopener" target="_blank">@tabea</a> is presenting our joint work at DigitalHumanities 2025 in Lisbon, Portugal, with Linnea Söhn, J. Steller, P. Kehrein, A. Büttner, @epoz, <a href="https://fedihum.org/@sashabruns" class="u-url mention" rel="nofollow noopener" target="_blank">@sashabruns</a> J. Grünewälder, J. Hörnschemeyer, C. Sander, V. Grund, <a href="https://fosstodon.org/@heikef" class="u-url mention" rel="nofollow noopener" target="_blank">@heikef</a> <a href="https://sigmoid.social/@lysander07" class="u-url mention" rel="nofollow noopener" target="_blank">@lysander07</a> & T. Schrade: NFDI4Culture Integration Stories: Bridging Gaps Between Isolated Research Resources<a href="https://nfdi.social/@nfdi4culture" class="u-url mention" rel="nofollow noopener" target="_blank">@nfdi4culture</a> <a href="https://sigmoid.social/tags/NFDIrocks" class="mention hashtag" rel="nofollow noopener" target="_blank">#NFDIrocks</a> <a href="https://nfdi.social/@NFDI4DS" class="u-url mention" rel="nofollow noopener" target="_blank">@NFDI4DS</a> <a href="https://nfdi.social/@NFDI4Memory" class="u-url mention" rel="nofollow noopener" target="_blank">@NFDI4Memory</a> <a href="https://sigmoid.social/tags/NFDIMatWerk" class="mention hashtag" rel="nofollow noopener" target="_blank">#NFDIMatWerk</a> <a href="https://sigmoid.social/tags/ontologies" class="mention hashtag" rel="nofollow noopener" target="_blank">#ontologies</a> <a href="https://sigmoid.social/tags/knowledgegraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#knowledgegraphs</a> <a href="https://sigmoid.social/tags/researchdatamanagement" class="mention hashtag" rel="nofollow noopener" target="_blank">#researchdatamanagement</a> <a href="https://sigmoid.social/tags/researchdata" class="mention hashtag" rel="nofollow noopener" target="_blank">#researchdata</a> <a href="https://wisskomm.social/@fiz_karlsruhe" class="u-url mention" rel="nofollow noopener" target="_blank">@fiz_karlsruhe</a> <a href="https://sigmoid.social/tags/dh2025" class="mention hashtag" rel="nofollow noopener" target="_blank">#dh2025</a>

FIZ KarlsruheWe’re hiring a PostDoc/Senior Researcher (f/m/x) in Knowledge Graphs & Ontologies at FIZ Karlsruhe (start: Oct 1, 2025) in the BMBF project MaterialDigital III. You have experience in Semantic Web, Ontological Engineering & NeuroSymbolic AI? Join us!🔗 More info: <a href="https://www.fiz-karlsruhe.de/en/stellenanzeigen/postdocsenior-researcher-wmx" rel="nofollow noopener" translate="no" target="_blank">https://www.fiz-karlsruhe.de/en/stellenanzeigen/postdocsenior-researcher-wmx</a><a href="https://wisskomm.social/tags/AI" class="mention hashtag" rel="nofollow noopener" target="_blank">#AI</a> <a href="https://wisskomm.social/tags/KnowledgeGraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#KnowledgeGraphs</a> <a href="https://wisskomm.social/tags/SemanticWeb" class="mention hashtag" rel="nofollow noopener" target="_blank">#SemanticWeb</a> <a href="https://wisskomm.social/tags/PostDoc" class="mention hashtag" rel="nofollow noopener" target="_blank">#PostDoc</a> <a href="https://wisskomm.social/tags/Research" class="mention hashtag" rel="nofollow noopener" target="_blank">#Research</a> <a href="https://wisskomm.social/tags/Karlsruhe" class="mention hashtag" rel="nofollow noopener" target="_blank">#Karlsruhe</a> <a href="https://wisskomm.social/tags/teamFIZ" class="mention hashtag" rel="nofollow noopener" target="_blank">#teamFIZ</a>

Harald SackYesterday, I've attended the MSE Research Data Forum 2025 organised by <a href="https://sigmoid.social/tags/NFDIMatWerk" class="mention hashtag" rel="nofollow noopener" target="_blank">#NFDIMatWerk</a>. Aside from the conference presentations, our little ontologies group was meeting and discussing future work on ontologies in NFDI-MatWerk, including NFDIcore, MatWerk Application Ontologies, and PMDcore.<a href="https://nfdi-matwerk.de/nfdi/2025/" rel="nofollow noopener" translate="no" target="_blank">https://nfdi-matwerk.de/nfdi/2025/</a><a href="https://sigmoid.social/tags/NFDIrocks" class="mention hashtag" rel="nofollow noopener" target="_blank">#NFDIrocks</a> <a href="https://sigmoid.social/@joerg" class="u-url mention" rel="nofollow noopener" target="_blank">@joerg</a> <a href="https://sigmoid.social/@fizise" class="u-url mention" rel="nofollow noopener" target="_blank">@fizise</a> <a href="https://wisskomm.social/@fiz_karlsruhe" class="u-url mention" rel="nofollow noopener" target="_blank">@fiz_karlsruhe</a> <a href="https://sigmoid.social/tags/mse" class="mention hashtag" rel="nofollow noopener" target="_blank">#mse</a> <a href="https://sigmoid.social/tags/materialsscience" class="mention hashtag" rel="nofollow noopener" target="_blank">#materialsscience</a> <a href="https://sigmoid.social/tags/ontologies" class="mention hashtag" rel="nofollow noopener" target="_blank">#ontologies</a> <a href="https://sigmoid.social/tags/semanticweb" class="mention hashtag" rel="nofollow noopener" target="_blank">#semanticweb</a> <a href="https://sigmoid.social/tags/knowledgegraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#knowledgegraphs</a>

Katja HoseToday, I had the great pleasure of giving an introductory lecture on knowledge graphs at the <a href="https://mastodon.social/tags/BILAI" class="mention hashtag" rel="nofollow noopener" target="_blank">#BILAI</a> Summer School 2025 in Klagenfurt. Great energy and engagement! <a href="https://mastodon.social/tags/knowledgeGraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#knowledgeGraphs</a> <a href="https://mastodon.social/tags/RDF" class="mention hashtag" rel="nofollow noopener" target="_blank">#RDF</a> <a href="https://mastodon.social/tags/SHACL" class="mention hashtag" rel="nofollow noopener" target="_blank">#SHACL</a> <a href="https://mastodon.social/tags/SPARQL" class="mention hashtag" rel="nofollow noopener" target="_blank">#SPARQL</a> <a href="https://mastodon.social/tags/LLM" class="mention hashtag" rel="nofollow noopener" target="_blank">#LLM</a><a href="https://www.bilateral-ai.net/doctoral-school/summer-school-2025" rel="nofollow noopener" translate="no" target="_blank">https://www.bilateral-ai.net/doctoral-school/summer-school-2025</a>

Daniel Dobriy (Q112275832)🎉 Thrilled to announce Roberto Navigli as Keynote Speaker at <a href="https://w3c.social/tags/RAGEKG" class="mention hashtag" rel="nofollow noopener" target="_blank">#RAGEKG</a> 2025! 🎤 Full Professor at the Sapienza University of Rome, founder of Babelscape, and pioneer <a href="https://w3c.social/tags/GraphRAG" class="mention hashtag" rel="nofollow noopener" target="_blank">#GraphRAG</a> research!Nov 2-3 | Nara, Japan 🇯🇵 🔗 Details and CfP (open): <a href="https://2025.rage-kg.org" rel="nofollow noopener" translate="no" target="_blank">https://2025.rage-kg.org</a>@iswc_conf <a href="https://mastodon.social/@ragekg" class="u-url mention" rel="nofollow noopener" target="_blank">@ragekg</a> <a href="https://w3c.social/tags/AI" class="mention hashtag" rel="nofollow noopener" target="_blank">#AI</a> <a href="https://w3c.social/tags/KnowledgeGraphs" class="mention hashtag" rel="nofollow noopener" target="_blank">#KnowledgeGraphs</a> <a href="https://w3c.social/tags/LLM" class="mention hashtag" rel="nofollow noopener" target="_blank">#LLM</a>

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